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Embargo Ransomware Decryption and Recovery

Under attack by ransomware or suffering a cyber breach?

Speed is critical when facing a live cyber attack. If you believe you’ve been compromised, by the Embargo ransomware group or another threat actor - contact us immediately.

About Embargo ransomware group

Embargo ransomware is a new threat actor that first emerged in late 2023. Believed to be linked to state-sponsored campaigns, it has quickly gained notoriety within the ransomware scene for its mix of political affiliations, ideological messaging, and technically sophisticated attacks.

Victims typically find their infrastructure compromised, their systems locked, and a ransom note referencing international sanctions or political disputes. The group pressures victims to pay, leveraging not just financial loss but also reputational and geopolitical consequences.

What we can help with:

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If your organisation has been infected with ransomware contact us immediately.

How Embargo operators work

Embargo is a well-resourced group operating under the ransomware-as-a-service (RaaS) model. While ransomware affiliates are responsible for the hands-on activity, the Embargo group controls infrastructure, the toolkit and the leak site – a typical leak site used to expose stolen data.

What sets Embargo apart is its unique modus operandi: it blends financial motivations with politically charged messaging. This unusual alignment suggests an intent to destabilise or discredit targets based on ideology. Analysts believe the group’s sophistication is a result of ongoing active development and deliberate tooling strategies.

Embargo frequently targets public sector organisations, NGOs, and Critical Infrastructure across Europe and Asia. The group’s claims often include falsified or decrypted payloads, used to simulate data leaks or reputational damage even when actual compromise is minimal.

We are equipped to deal with an attack from any ransomware group.

Don’t hesitate to contact us if you are under attack from a ransomware group not listed above. 

Recognising an Embargo attack

Embargo employs double extortion and an advanced ransomware payload written in Rust, a modern, memory-safe language known to evade traditional endpoint detection. The embargo toolkit is tailored for successful deployment across a victim’s infrastructure and includes numerous custom compiled components.

Key technical characteristics include:

  • The use of vulnerable kernel drivers to achieve kernel level code execution

  • Threat actor abuses signed drivers for privilege escalation

  • The toolkit consists of tools named mdeployer and ms4killer respectively, which terminate security product processes

  • The response killer, or mdeployer, is used to disable security solutions and eliminate security products running

  • Malware abuses safe mode to reboot systems and install itself without interference

 

Why you must not interfere with your ransomware environment

If you discover a physical break-in at your offices, your first instinct would be to call the police; touch nothing and let them search for clues. Then, your focus would shift to restoring business operations.

A cyber-attack requires the same approach. Your digital environment is a CRIME SCENE. It is crucial to leave the environment untouched to allow for a forensic investigation.

This is not a task for your IT team or MSP. Digital Forensic specialists are available 24/7 to assist you, just like in a physical crime.

description Sector Date Discovered Attack Date Country Screenshot
Hospitality and Tourism 31/03/2026 12:15 PM 31/03/2026 11:18 AM US
Technology 26/03/2026 08:16 PM 26/03/2026 06:47 PM US
Technology 14/03/2026 08:00 PM 14/03/2026 06:54 PM US
Technology 11/03/2026 06:37 PM 11/03/2026 06:01 PM IN
Technology 11/03/2026 03:38 PM 11/03/2026 02:13 PM HU
Technology 09/03/2026 06:45 PM 09/03/2026 04:11 PM US
Transportation/Logistics 06/12/2025 06:16 PM 06/12/2025 05:14 PM LS
Technology 22/10/2025 08:14 PM 20/10/2025 01:03 PM TW
Business Services 20/09/2025 05:46 AM 11/09/2025 02:49 PM US
Healthcare 06/08/2025 10:28 AM 17/07/2025 03:24 PM US
Telecommunication 24/06/2025 03:45 PM 02/06/2025 06:59 AM US
Manufacturing 10/06/2025 08:19 PM 10/06/2025 06:24 PM SG
Manufacturing 30/05/2025 03:44 PM 24/05/2025 07:34 AM US
Manufacturing 30/05/2025 03:42 PM 23/05/2025 02:38 PM US
Business Services 14/05/2025 01:45 AM 02/05/2025 08:06 PM SG
Hospitality and Tourism 14/03/2025 08:08 AM 12/03/2025 06:44 PM TR
Technology 09/03/2025 07:53 AM 27/02/2025 07:47 PM GB
Technology 25/02/2025 10:52 AM 20/02/2025 02:24 PM BR
Financial Services 17/02/2025 10:22 PM 14/02/2025 05:20 PM US
Healthcare 16/02/2025 10:27 PM 05/02/2025 03:46 PM US
Financial Services 14/02/2025 06:02 PM 14/02/2025 05:20 PM US
Construction 09/01/2025 03:21 PM 09/01/2025 03:20 PM OM
Manufacturing 30/11/2024 07:58 AM 29/11/2024 09:13 PM US
Healthcare 13/11/2024 12:34 AM 12/11/2024 11:51 PM US
Public Sector 05/11/2024 09:51 PM 05/11/2024 03:34 PM JO
Healthcare 05/11/2024 04:48 PM 04/11/2024 04:50 PM US
Healthcare 05/11/2024 09:18 AM 04/11/2024 04:50 PM US
Healthcare 30/09/2024 01:34 AM 04/09/2024 12:00 AM US
Technology 26/07/2024 03:17 PM 26/07/2024 03:13 PM US
Public Sector 26/07/2024 02:42 PM 26/07/2024 02:21 PM US
Business Services 11/07/2024 10:37 PM 11/07/2024 09:24 PM
Manufacturing 04/07/2024 02:34 PM 04/07/2024 02:34 PM FR
Healthcare 06/06/2024 08:52 PM 06/06/2024 06:55 PM US
Transportation/Logistics 21/05/2024 10:15 PM 21/05/2024 05:14 PM US
Technology 17/05/2024 06:31 PM 17/05/2024 08:24 AM DE
Business Services 08/05/2024 10:35 PM 08/05/2024 02:22 PM US
Financial Services 30/04/2024 08:29 PM 30/04/2024 05:37 PM AU
Business Services 21/04/2024 04:41 PM 17/04/2024 06:20 PM US

Post breach actions

  • Call a NCSC Cyber Incident Response approved supplier Some NCSC providers will fund up to 48 hours of investigation into your incident.
  • Report the incident to Report Fraud
  • Locate your business continuity plan Work out what you can do without access to your systems and data.
  • Identify your business insurance contact details
Business woman contacting a Zensec ransomware recovery service

Who are we and what experience do we have in responding to cyber incidents?

We are accredited to ISO 27001 and recognised by the UK’s National Cyber Security Centre (NCSC).

We provide comprehensive cyber risk management services, with a core focus on Digital Forensics and Incident Response (DFIR). Our capabilities are driven by a 24/7 Security Operations Centre and a dedicated in-house intelligence team that delivers timely, actionable threat reporting.

With decades of collective cyber security experience, we have the expertise to assume operational ownership of your entire IT security architecture – simplifying and strengthening cyber security across your business.

As an Assured Service Provider for Cyber Incident Response (CIR) at the Standard Level. This accreditation demonstrates our ability to deliver high-assurance, effective support in response to a wide range of cyber threats.

Your NCSC-approved supplier is a specialist crime scene investigator who will:

  1. Isolate and preserve your environment for forensic investigation.
  2.  Identify where the data has been duplicated and issue a legal takedown order.
  3. Identify your data, application and systems restore points. These might be at different points in time and will need to be carefully restored and reconstructed in a pristine environment.
  4.  Liaise with your business insurance company and if needed, with the Police.
  5. Advise you on notifying your customers of your situation.
  6. Rebuild your systems, restore your data and get you back to full operation. Note: This process can take between 2 weeks – 2 months.

 

Working with us

Our response process

Our team are ransomware recovery specialists with a proven, streamlined approach to resolving incidents quickly and effectively.

Step 1: Triage

We deploy our incident response team the same day. From the first call, we begin onboarding, introduce key stakeholders, set communication schedules, and start gathering critical information to guide the response.

Step 2: Investigation

DFIR (Digital Forensic Incident Response) teams investigate breaches to identify vulnerabilities, attack vectors, and system impacts from ransomware such as Data Loss (PII). We deliver clear forensic insights to guide mitigation.

Step 3: Contain

Our onsite and remote teams act fast to stop the attack in its tracks. That includes isolating affected systems, removing malicious code, and putting protections in place to prevent further spread or damage.

Step 4: Remediate & Eradicate

Once contained, we work to fully eliminate the threat. This includes fixing exploited vulnerabilities, restoring systems to a secure state, and ensuring no traces of the attack remain.

Step 5: Recover

Our incident response teams help get your business back to normal. We restore access to systems, recover data, and ensure services are safe, stable, and functioning, with minimal downtime.

Step 6: Post Incident

We conduct a full review of the incident response and recovery efforts. Together we assess what happened, what worked, and what can be improved, helping you build stronger defences for the future.

Forensic analysis to drive recovery

Our process includes a thorough digital forensic analysis from step two where the output becomes a central component of business recovery. This is because understanding the attack is of critical importance:

  • Informing an initial infection date

  • The extent and spread of infection

  • Data exfiltration having an impact on regulatory positions

  • Ensuring that the attacker and any tooling or artefacts they leave behind are eradicated

It is critical that the analysis of digital evidence is carried out to an agreed plan.

Maximising early root cause discovery and legal leverage

The process is purpose-built to uncover the root cause as early as possible, which is essential to inform remediation / eradication and recovery as well as supporting a legal take-down case if this is applicable. A legal take-down means we can assist in the legal enforcement that stops the criminals from publishing the data, thus undermining the ransom notice.

Our Digital Forensic and Incident Response (DFIR) teams maintain consistent communication throughout. Dedicated Incident Managers and technical engineering leads provide updates during the Cyber Incident Response journey, utilising risk registers and working within change management processes, all from triage through to post-incident, delivering successful business recovery.

Key take aways

  • You will not be able to access your systems or data.
  • It is advised to disconnect from the internet and shut down your systems, including PCs, to prevent further infections.
  • Your Office 365 system might also be compromised, allowing the attackers to monitor your responses. Avoid communicating with individuals through your primary email or team systems.
  • Threat actors typically infiltrate your system at least 2-4 weeks before you become aware of the attack. Your data will have already been exfiltrated. If your system is encrypted, this was not an overnight event.
  • Ransom demands in the UK typically range from £500,000 to £3 million, with some sectors, like education, facing demands that exceed £5 million
  • Paying the ransom may violate financial sanctions, which is a criminal offence and could result in a custodial sentence or further financial penalties.
  • If your data is sold or published online, it puts your customers and staff at risk, potentially implicating you in a Data Protection breach.
  • You will need to submit a data takedown request to the initial location where the data was transferred.
  • Do not overwrite the encrypted data. It is crucial to determine when the infection began and where the data was sent.
  • Avoid rebuilding from the latest backup, as it is likely to be infected.

Why should I trust Zensec to do this work rather than my IT team?

A forensic analysis needs to be meticulous and a clean restore and recovery requires a wealth of experience not normally available in an in-house team who must provide a broader range of IT support skills:

Internal IT teams don’t have the necessary skill set to resolve security encryption issues themselves. 

IT teams may recover to the same position with indicators of compromise ready to do it again… which can lead to another breach.

Internal teams are pressured to restore business operations and may recover before forensic analysis even begins, potentially destroying the crime scene before completion.

We can help

Frequently asked questions

Key information when you’re under pressure.

Yes. Embargo ransomware encrypts systems, exfiltrates stolen data, and demands ransom payments using basic payout schemes under politically charged threats. It employs Embargo’s group language within ransom notes to reinforce its messaging and intimidate victims.

The group uses custom ransomware payloads with strategic intent and efficiency, often deploying a typical defense evasion tool to avoid detection. In one observed case, two encrypted files were used to simulate breach depth, just enough to coerce payment without necessarily activating the full ransomware suite. This suggests Embargo tailors each attack based on the victim’s system and the desired pressure level.

Embargo infections are often initiated via:

  • Spear-phishing campaigns

  • Visiting compromised websites

  • Exploited vulnerable driver chains and security solution weaknesses

Once embedded, the group uses a driver file dropped into the system to trigger active intrusion and disable security solutions. The security solution protecting your environment may be targeted directly unless your defences include only selected security solutions resistant to Embargo’s toolkit.

To protect your organisation, we recommend:

  • Educating staff on the importance of cyber hygiene

  • Enforcing strong password policies and multi-factor authentication

  • Removing old user accounts and unused security products

  • Deploying timely updates to all software

  • Maintaining verified, regular backups

  • Investing in a particular security solution that monitors for ransomware signatures and kernel-level abuse

A ransomware attack presents the most significant threat to your business by:

  • Disabling your access to systems, which could hinder machinery operation or impede progress through your business processes.
  • Blocking access to critical data concerning suppliers, shipments, customers, orders, or steps in your business workflow.

In the event of a business interruption, identifying your position in the supply chain and sustaining operations can be challenging. If the disruption continues, maintaining business continuity becomes critical. Once systems and data are restored, addressing backlogs and establishing future operational protocols are essential.

Ransomware ranks only behind receivership in terms of its capacity to incapacitate a business.

The NCSC is the UK National Cyber Security Centre. They provide cyber security guidance and support, helping to make the UK the safest place to live and work online. They have defined a Cyber Incident Response procedure and they have approved and accredited suppliers to provide this service.

https://www.ncsc.gov.uk/

As a recognised Assured Service Provider by the National Cyber Security Centre (NCSC), Zensec provide comprehensive cyber risk management services that are designed to Protect, Detect & Mitigate cyber security threats across the UK.

Report Fraud is the UK's national reporting centre for fraud and cybercrime. Whether you have been scammed, defrauded, or experienced cybercrime in England, Wales, or Northern Ireland, Report Fraud offers a central point of contact for information on fraud and financially motivated cybercrime.

https://www.reportfraud.police.uk/https://www.actionfraud.police.uk/

Yes. If any of the stolen data includes customer information, it is your legal obligation to notify the Information Commissioner’s Office (ICO) and potentially your affected customers. (More at: ico.org.uk)

Your insurer or legal team will advise on your obligations, but Zensec has deep experience navigating these issues. We can support you in coordinating a response, maintaining compliance, and reducing long-term risk.

Ransomware groups typically gain access to networks through phishing emails, exploiting vulnerabilities in software or hardware, and weak remote access configurations. Once inside, they often use techniques such as encrypting files, deleting backup copies, and modifying system processes to maximise disruption.

They frequently demand payment in cryptocurrency and threaten to leak stolen data if the ransom isn’t paid. Organisations should focus on strong cybersecurity measures, including user education, regular patching, multi-factor authentication, and maintaining secure backups to defend against these threats.

The best security solution combines multiple layers of defence, including regular software updates, strong password policies, multi-factor authentication, user education, and reliable data backups. It’s important to address vulnerabilities in deployed versions of software and hardware to prevent attackers from exploiting weak points. Advanced threat detection tools that monitor for unusual activity across a compromised network help identify threats early. Even if attackers use different variants, many ransomware strains share the same functionality, so a comprehensive, multi-layered approach is essential to keep systems secure.

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Dealing with a ransomware attack?
Our ransomware recovery service can help

Our expert team works quickly to contain the breach, recover your data, and restore your systems to full operation. We’ll guide you through every step of the recovery process and help strengthen your defences to prevent future attacks. Regain control with Zensec - trusted support when it matters most.